Abstract

LVDS (Low Voltage Differential Signaling) based technology is
revolutionizing high-performance backplanes used for multi-point
communication in Datacom, Telecom, ISP and Storage applications. It enables
quadrupling the bandwidth in many cases while consuming less power and
easing termination complexity. The use of a differential technology allows
for a reduced voltage swing without compromising noise margins. This
enables 100-400+ Mbps multi-point transmission, low bit error rates,
live-insertion capability, and a general robustness not available from
other single-ended small-swing technologies. This paper provides tips and
practical design guidelines for Bus LVDS backplanes. Concepts are supported
with design calculations, simulations, and actual hardware measurements.

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